Infestations

Parasites, including harmful nanites, cause infestations, which are a type of affliction similar to diseases. Infestations can only be cured through specific means; otherwise, no matter how many saving throws the target attempts, the infestation continues to afflict it. While remove disease (or a similar effect) instantly cures an infestation, immunity to disease offers no protection, as the infestation is caused by parasites. Infestations can afflict androids despite their artificial nature and immunity to disease, but they can’t afflict nonliving creatures such as undead.